| 摘要 |
PURPOSE:To make it possible to confirm the trouble of a sensor visually by providing display elements to display the display object and the temperature value on a display panel, and making the display object variable in order when a switch is converted to operate an operation device. CONSTITUTION:A microcomputer 43 decides the nonregulation of the sensors by turning off a switch 46, and the regulation of the sensors by turning on the switch 46. In the sensor nonregulation, the object temperature, the inner air temperature, and the like are digital-displayed on display elements 42A and 42B. On the other hand, in the sensor regulation, when an outer air temperature sensor 6 is the regulation object, for example, the display TA of the outer air temperature sensor 6 is displayed on a display element 42A, and the detected value of the sensor 6 is digital-displayed on a display element 42B. And the display temperature is regulated to be unified to the temperature of an accurate thermometer by a trimmer 25. By operating an operation switch 40, the regulation object can be converted in order. By such a constitution, the trouble of a sensor can be confirmed visually without using a special apparatus. |
